张晓宏教授、王凯教授及其合作者在acs nano上发表论文-尊龙凯时

作者：

hui wang¹, yi-jian gao², jia-xiong chen³, xiao-chun fan¹, yi-zhong shi⁴, yu jia¹, kai wang^2,5*, shengliang li²*, chun-sing lee⁶* and xiao-hong zhang^1,7*

单位：

¹institute of functional nano&soft materials (funsom), joint international research laboratory of carbon-based functional materials and devices, soochow university, suzhou 215123, jiangsu, china

²college of pharmaceutical sciences, soochow university, suzhou, 215123, jiangsu, p. r. china.

³school of chemical engineering and light industry, guangdong university of technology, guangzhou, guangdong, 510006, p. r. china.

⁴school of materials science and engineering, suzhou university of science and technology, suzhou 215009, jiangsu, p. r. china.

⁵key laboratory for carbon-based functional materials & devices, soochow university, suzhou, 215123, jiangsu, pr china.

⁶center of super-diamond and advanced films (cosdaf) and department of chemistry, city university of hong kong, hong kong sar, p. r. china.

⁷jiangsu key laboratory of advanced negative carbon technologies, soochow university, suzhou, 215123, jiangsu, pr china.

摘要：

thermally activated delayed fluorescence (tadf) materials have received increasing attention from organic electronics to other related fields, such as bioapplications and photocatalysts. however, it remains a challenging task for tadf emitters to showcase the versatility concurrent with high performance in multiple applications. herein, we first present such a proof-of-concept tadf material, namely, qcn-sac, through strategically manipulating exciton dynamics. on the one hand, qcn-sac displays obvious aggregate-induced deep-red/near-infrared emission with a high radiative rate beyond 10⁷ s^–1, thereby demonstrating nearly 100% exciton utilization under oxygen-free conditions. in a qcn-sac-based nondoped organic light-emitting diode (oled), a superb external quantum efficiency of 16.4% can be reached with a peak at 708 nm. on the other hand, qcn-sac also exhibits a high intersystem crossing rate over 10⁸ s^–1 without leveraging the heavy-atom effect, which makes qcn-sac-based nanoparticles perform well in boosting reactive oxygen species generation for imaging-guided photodynamic therapy (pdt). this work presents a fundamental principle for designing high-performance all-in-one tadf molecules for oled and pdt applications. this discovery holds promise for advancing the development of versatile tadf materials with a range of uses in the near future.

影响因子：

15.8

分区情况：

一区

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